Original letters of the Revd Dr Elliston, Master of Sidney Coll. and of the Revd Thomas Martyn, Rector of Pertenhall in the county of Bedford, and professor of Botany in the University of Cambridge, GBR/0012/MS Add.10259. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/resources/13599 Accessed May 14, 2025.